3results about How to "Improve functional activity" patented technology

The present application belongs to the technical field of food processing, and specifically relates to a physical preparation method of high-resistance starch ultra-micro powder. The high-resistance starch rice with a dry basis resistance starch content of greater than or equal to 30% is used as raw material, and a pure physical processing route is adopted. The rice is first made crisp through twice low-temperature baking at 100-120 DEG C, and the structure of the resistance starch is stabilized at the same time. Then, after coarse crushing, the rice is sent into an airflow pulverizer, and wind-driven ultra-micro grinding is carried out in a low-temperature environment. Finally, the ultra-micro powder is obtained through grading. In the present application, no chemical reagent and enzyme preparation is used in the whole process, the processing temperature is lower than the thermal decomposition temperature of the resistance starch, the retention rate of the finished product resistance starch is greater than or equal to 93%, the dry basis content is greater than or equal to 28%, the powder is fine and has good cold water dispersibility, and the shelf life at room temperature can be more than 12 months. The present application has the advantages of simple process, controllable cost, suitability for large-scale production, no need for customizing special devices, short process flow, no complex reaction, separation and purification processes, low equipment investment and operation cost, and easy realization of large-scale industrial production.

This invention belongs to the field of plant tissue culture technology, specifically disclosing a method for producing Polygonatum polysaccharides using Polygonatum yunnanense tissue culture, comprising the following steps: explant disinfection, callus induction, callus proliferation and induction culture: selecting vigorous callus tissue, transferring it to a culture medium: White medium + 2,4-D 1.5 mg / L + VC 20 mg / L + sucrose 40 g / L + 30 mg / L inducer + agar 6 g / L, pH 5.8, after culture, collecting the callus, drying it, and then extracting Polygonatum yunnanense polysaccharides; the inducer is Polygonatum yunnanense endophytic basidiomycetes (… Talaromyces sp. The fermentation broth extract of HJF23; the HJF23 preservation number is CCTCC NO: M2021344. This invention not only realizes the efficient biosynthesis of Polygonatum yunnanense polysaccharide, but also significantly enhances its functional activity.